-#include <cstring>
+#include <cerrno>
+#include <cstring> // strchr
#include <iostream>
+#include <signal.h>
#include <stdexcept>
#include <msg/msg.h>
#include <xbt/log.h>
XBT_LOG_NEW_SUBCATEGORY(comm, simu, "Messages from asynchronous pipes");
XBT_LOG_NEW_SUBCATEGORY(proc, simu, "Messages from base process class");
XBT_LOG_NEW_SUBCATEGORY(loba, simu, "Messages from load-balancer");
+XBT_LOG_NEW_SUBCATEGORY(thrd, simu, "Messages from thread wrapper class");
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main);
#include "options.h"
#include "process.h"
#include "statistics.h"
+#include "synchro.h"
#include "timer.h"
#include "tracing.h"
#include "version.h"
+#define DATA_DESCR_WIDTH 37
+
namespace {
// Failure exit status
enum {
EXIT_FAILURE_INIT = 0x02, // failed to initialize simulator
EXIT_FAILURE_SIMU = 0x04, // simulation failed
EXIT_FAILURE_CLEAN = 0x08, // error at cleanup
+ EXIT_FAILURE_OTHER = 0x10, // other error
};
- xbt_mutex_t proc_mutex;
- xbt_cond_t proc_cond;
- unsigned proc_counter;
+ // Cannot be globally initialized...
+ mutex_t* proc_mutex;
+ condition_t* proc_cond;
+ unsigned proc_counter = 0;
- statistics comps;
statistics loads;
+ statistics comps;
+ statistics data_send_amount;
+ statistics data_recv_amount;
+ statistics data_send_count;
+ statistics data_recv_count;
+ statistics ctrl_send_amount;
+ statistics ctrl_recv_amount;
+ statistics ctrl_send_count;
+ statistics ctrl_recv_count;
}
try {
proc = opt::loba_algorithms.new_instance(opt::loba_algo, argc, argv);
- xbt_mutex_acquire(proc_mutex);
+ proc_mutex->acquire();
++proc_counter;
- xbt_mutex_release(proc_mutex);
+ proc_mutex->release();
result = proc->run();
- xbt_mutex_acquire(proc_mutex);
- comps.push(proc->get_comp());
+ proc_mutex->acquire();
loads.push(proc->get_real_load());
+ comps.push(proc->get_comp_amount());
+ data_send_amount.push(proc->get_data_send_amount());
+ data_recv_amount.push(proc->get_data_recv_amount());
+ data_send_count.push(proc->get_data_send_count());
+ data_recv_count.push(proc->get_data_recv_count());
+ ctrl_send_amount.push(proc->get_ctrl_send_amount());
+ ctrl_recv_amount.push(proc->get_ctrl_recv_amount());
+ ctrl_send_count.push(proc->get_ctrl_send_count());
+ ctrl_recv_count.push(proc->get_ctrl_recv_count());
// Synchronization barrier...
// The goal is to circumvent a limitation in SimGrid (at least
// destroys a communication they had together.
--proc_counter;
- xbt_cond_broadcast(proc_cond);
+ proc_cond->broadcast();
while (proc_counter > 0)
- xbt_cond_wait(proc_cond, proc_mutex);
- xbt_mutex_release(proc_mutex);
+ proc_cond->wait(*proc_mutex);
+ proc_mutex->release();
delete proc;
}
- catch (std::invalid_argument& e) {
+ catch (const std::invalid_argument& e) {
THROW1(arg_error, 0, "%s", e.what());
}
+ catch (const std::exception& e) {
+ THROW1(0, 0, "%s", e.what());
+ }
return result;
}
static void check_for_lost_load()
{
double total_init = process::get_total_load_init();
-
double total_exit = process::get_total_load_exit();
double lost = total_init - total_exit;
double lost_ratio = 100.0 * lost / total_init;
if (lost_ratio < -opt::load_ratio_threshold)
- XBT_CRITICAL("Gained load at exit! %g (%g%%) <============",
- -lost, -lost_ratio);
+ XBT_ERROR("Gained load at exit! %g (%g%%) <============",
+ -lost, -lost_ratio);
else if (lost_ratio > opt::load_ratio_threshold)
- XBT_CRITICAL("Lost load at exit! %g (%g%%) <============",
- lost, lost_ratio);
+ XBT_ERROR("Lost load at exit! %g (%g%%) <============",
+ lost, lost_ratio);
else
XBT_VERB("Total load at exit looks good: %g (%g%%)", lost, lost_ratio);
double total_running = process::get_total_load_running();
double running_ratio = 100.0 * total_running / total_init;
if (running_ratio < -opt::load_ratio_threshold)
- XBT_CRITICAL("Negative running load at exit! %g (%g%%) <============",
- total_running, running_ratio);
+ XBT_ERROR("Negative running load at exit! %g (%g%%) <============",
+ total_running, running_ratio);
else if (running_ratio > opt::load_ratio_threshold)
- XBT_CRITICAL("Remaining running load at exit! %g (%g%%) <============",
- total_running, running_ratio);
+ XBT_ERROR("Remaining running load at exit! %g (%g%%) <============",
+ total_running, running_ratio);
else
XBT_VERB("Running load at exit looks good: %g (%g%%)",
total_running, running_ratio);
}
+static void signal_handler(int /*sig*/)
+{
+ if (!opt::exit_request) {
+ XBT_CRITICAL(">>>>>>>>>>"
+ " caught CTRL-C: global exit requested "
+ "<<<<<<<<<<");
+ opt::exit_request = true;
+ }
+}
+
+static void install_signal_handler()
+{
+ struct sigaction action;
+ action.sa_handler = signal_handler;
+ sigemptyset(&action.sa_mask);
+ action.sa_flags = SA_RESTART;
+ if (sigaction (SIGINT, &action, NULL) == -1) {
+ std::cerr << "sigaction: " << strerror(errno) << "\n";
+ exit(EXIT_FAILURE_OTHER);
+ }
+}
+
#define PR_STATS(descr, st) \
- XBT_INFO("| %.*s: %g / %g / %g", 39, \
- descr " total/avg./stddev. at exit.........................", \
+ XBT_INFO("| %.*s: %g / %g / %g", DATA_DESCR_WIDTH, \
+ descr " (total/avg./stddev)................................", \
st.get_sum(), st.get_mean(), st.get_stddev())
int main(int argc, char* argv[])
// Note: MSG_global_init() may throw an exception, but it seems
// impossible to catch it correctly :-(
MSG_global_init(&argc, argv);
+ install_signal_handler();
// Parse global parameters
bool parse_res = opt::parse_args(&argc, argv);
MSG_function_register_default(simulation_main);
// Create the platform and the application.
+ XBT_DEBUG("Loading platform file...");
MSG_create_environment(opt::platform_file.c_str());
+ XBT_DEBUG("Creating hostdata...");
hostdata::create();
+ XBT_DEBUG("Deploying processes...");
if (opt::auto_depl::enabled) {
if (!opt::auto_depl::nhosts)
opt::auto_depl::nhosts = hostdata::size();
exit_status = EXIT_FAILURE_SIMU; // =====
- proc_mutex = xbt_mutex_init();
- proc_cond = xbt_cond_init();
- proc_counter = 0;
+ proc_mutex = new mutex_t();
+ proc_cond = new condition_t();
// Launch the MSG simulation.
XBT_INFO("Starting simulation at %f...", MSG_get_clock());
simulated_time = MSG_get_clock();
XBT_INFO("Simulation ended at %f.", simulated_time);
- xbt_cond_destroy(proc_cond);
- xbt_mutex_destroy(proc_mutex);
+ delete proc_cond;
+ delete proc_mutex;
if (res != MSG_OK)
THROW1(0, 0, "MSG_main() failed with status %#x", res);
XBT_INFO(",----[ Results ]");
PR_STATS("Load", loads);
PR_STATS("Computation", comps);
- XBT_INFO("| Total simulated time...................: %g",
+ PR_STATS("Data send amount", data_send_amount);
+ PR_STATS("Data recv amount", data_recv_amount);
+ PR_STATS("Data send count", data_send_count);
+ PR_STATS("Data recv count", data_recv_count);
+ PR_STATS("Ctrl send amount", ctrl_send_amount);
+ PR_STATS("Ctrl recv amount", ctrl_recv_amount);
+ PR_STATS("Ctrl send count", ctrl_send_count);
+ PR_STATS("Ctrl recv count", ctrl_recv_count);
+ XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH,
+ "Total simulated time..................................",
simulated_time);
- XBT_INFO("| Total simulation time..................: %g",
+ XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH,
+ "Total simulation time.................................",
simulation_time.duration());
XBT_INFO("`----");
}
